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Патент USA US3061021

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Oct. 30, 1962
w. w. PAGET
3,061,01 1
Original Filed May 5, 1955
6 Sheets-Sheet 1
247222 212 Wage).
Oct. 30, 1962
w‘ w. PAGET
AN ‘OIL mm) mm. ms
Original Filed'May '5, 1955
6 sheeitslsheet 2
Min 212 Q2962.
dZZorney. I
Oct. 30, 1962
w. w. PAGET
Original Filed May 5, 1,955
6 Sheets-Sheet 3
W222 21! Ways}. .
Oct. 30, 1962
w. w. PAGET
Original Filed May 5, 1955
6 Sheets-Sheet 4
217222 2:2 fagei.
02 away
Oct. 30, 1962
Original Filed May 5, 1955
6 Sheets-Sheet 5
3,061,01 1
[22 27627202":
212522 2% payei‘.
Oct. 30, 1962
w. w. PAGET
Original Filed May 5, 1955 AN OIL FIELD DRILL RIG
6 Sheets-Sheet 6
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m” 67
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United States Patent 0 base
Patented Get. 30, 1962
FIG. 5 is an enlarged vertical section taken on line
5-5 of‘ FIG. 4.
FIG. ‘6 is a fragmentary side elevational view, show
ing the traveling block and a portion of its guiding track
shown in FIG. 3.
Win W. Pagct, Mountain Brook, Ala., assignor to Joy
Manufacturing Company, Pittsburgh, Pa., a corpora
tion of Pennsylvania
FIG. 7' is a horizontal section, taken on line ‘7-7 of
Original application May 5, 1955, Ser. No. 505,131.
FIG. 11, showing details of the elevator associated with
the traveling block.
Divided and this application Feb. 24, 1958, Ser. No.
FIG. 8 is a detail vertical section taken on line 8-8
10 of‘ FIG. 7'.
This invention relates to a transfer mechanism and
FIG. 9 is a detail~ vertical section taken on line 9-9
more particularly to a transfer mechanism for the drill
of FIG. 8'.
16 Claims. (Cl. 166-775)
pipe of the drill string of an oil field drill rig.
FIG. 10 is a detail side view, with parts in section, of
a special drill pipe section.
FIG‘. 11 is a side view of the lower portion ofthe ele
vator shown in FIG. 6.
FIG. 12 is an enlarged horizontal‘ section, taken. on
line 12-12 of FIG. 4, showing. the lower supporting arm
In a conventional oil?eld drill rig, the rotary table
of the drill and the draw works are mounted on the ?oor
of a ‘derrick and‘ the drill pipe sections or stands of the
drill string are stacked within the derrick. Usually, the
drill pipe sections or stands are handled by the hoisting
line. of the draw works, and‘ a sheave hook carried by the
which carries the‘ pipe spinning device
drop line of the hoisting cable is usually connected to
FIG. 13 is an enlarged horizontal section, taken on
the drill pipe for raising, lowering,_transferring and stack
line 13-13 of FIG..4, showing the intermediate. support.
ing, or storing the same, all in a conventional manner.
ing head. or arm of the transfer shaft.
The present invention contemplates improvements over
the usual pipe~handling mechanism of a drill rig in that
an improved transfer mechanism is providedv for me 25
chanically coupling and uncoupling the joints of the pipe
stands, for elevating the pipe standsv and for transferring
FIG. 14 isIa view similarto-FIG. 1-3, showing the pipe
gripping levers in;wide apart released position.
FIG. 15 is an. enlarged cross section, taken on line
15-15 offFIG. 13,, showing the angle-set rollers for en'
gaging. the drill pipe shoulder.
the same between drilling and‘ stacked position, with a
FIG; 16 isian enlarged detail‘ horizontal section, taken
minimum of manual intervention.
onli'ne. 16-16 of FIG. 4.
An object of the present invention is to provide an
FIG. 17 is an. enlarged. horizontal section taken
improved transfer mechanism for the drill pipe of an oil
through; the transfer clamp-on line.v 17-17 of FIG; 4'.
?eld drill rig for facilitating the handling of the pipe sec
FIG. 18. is. an.v enlarged cross section taken on’ line
18-—1'8 of. FIG. 17.
FIG. 19. is:a longitudinal vertical section taken on line
tions or stands. Another object is to provide: an im:
proved transfer or handling mechanism for coupling, un_
coupling and handling the pipe stands of a drill string
and for transferring the pipe stands toward stacked, posi
tion whereby handling of the drill pipe during running
of the drill string into, and the coming out of the string
from, the hole is facilitated and expedited. A still fur,
ther object is to provide an improved transfer shaft, col
umn or post having elevating meansassociated therewith
whereby the pipe sections or stands may be raised or
lowered in an improved manner. Another object. is to
provide an improved transfer shaft, column or post with
which a pipe-coupling or uncoupling device, a transfer
' 19-1-9. of FIG. 17...
FIGS.. 20. and 21v are enlarged detail views, respectively
showing the gripping- jaws; of the transferv clamp in- grip;
ping: contactv with drill, pipe and casing of different di
The. improved pipe-handling or transfer mechanism,
generally designated 1, is shown associated with‘ a con?
ventional oil ?eld drill rig, generally: designatedv 2.
The drill rigv includes the usual derrick 3, a derrick
a ?oor 4,,Va..rotary. tables and a draw works or hoisting
mechanism '6. The rotary table is adapted to engage
device, and elevator are associated whereby the. drill pipe
the usual kelly for rotating a drill string. 7 made‘ up-of
sections may be quickly uncoupled and transferred to
a series of drill pipe sections. ‘8 coupled together by tool
ward stacked or stored-away positions within the-derrick.
joints-of the threaded pin and- box type;
Still another object is to provide an improved. transfer 50 In.FIG. 10,,one'of the'special drill pipe-sections is shown‘
mechanism adapted. for association- with a conventional
comprisinga- tubular body 9-having an axial ?uid passage;
oil-?eld drill rig for the mechanization of certainopera
10rextending centrallytherethrough and" the pipe' body' has
tions of the drillrig. These. andother objects andad
a drillcollar 11', at the box endi12 of the pipe section-with
vantages of the invention will, however, hereinafter more
thev drill collar providing a downwardly'facing,shoulder
fully appear as the description proceeds.
13, for engagement by the pipe elevator. during hoisting
This applicationisa division ofmy copending applica=
tion Serial No. 506,13_l,_?1ed,May 5.; 19.5.5,‘ now aban
and loweringofthedrill pipe by the cable1~4 of the draw
works. Thepinend.» 15 has» a threaded pin receivable in
doned, of which copending application Serial No. 716,:
the. threaded socket of: thebox end ofthe adjacent pipe
934 is also a division.
section. The, draw works or hoisting mechanism hasa
In the accompanyingdrawings there is shownfor. pur 60 hoisting drum 16‘ on which the hoistingv cable is. wound
poses of illustration one form which the invention may,
and the cable‘ 14 extends upwardly from. this drum around
assume in practice.
a guidesheave 1‘7'a't' the top of’ the derrick and'from this
In these drawings:
guide sheave varound multiple top sheaves :18; The mull
FIGS..1 and 2 are somewhat diagrammatic. viewsof
tiple strands or. reeves of the hoistingv cable extending
the derrick of an oil ?eld‘ drill rig, showing the improved
guiding trackway for the traveling block and elevator.
FIG. 3 is an enlarged horizontal section. through the
derrick, looking toward the derrick ?oor and showing. de
tails of the improved transfer mechanism.
FIG. 4 is a fragmentary side elevational view of a por
tion of the drill rig, showing the improved transfer mech
anism associated therewith.
from the‘top‘ sheave‘ls'pass around'the sheave of'a'travel
ing block'or sheave 19‘ by which‘ an automatic elevator 20
is-carried. This‘ elevator is'suspended'j from the casing 21
of‘the traveling block" (FIGS. 6 and 11) and comprises a
bail" 22‘ carrying, aabottom‘ yoke 23 (FIGS. 7; 8" and 9)‘
70 whichmay be laterally attached to the drill pipe below the
shoulder of the upper tongs thereby tov suspend the'drill
pipe from they elevatorand When'the cable i‘s-wound‘ in or
payed out, the drill pipe may be raised or lowered as de
sired. Suitable adaptors may be attached to the elevator
be rotated about its vertical axis and by trapping ?uid
within the jack cylinder the shaft may be locked in ad
yoke to provide different size sockets for the reception
of drill pipe sections of different diameters.
justed position.
-It will be noted that the elevator 20 is of the type which
does not swivel so that make and break tongs and a spin
ning device cannot safely be used while the drill pipe is
supported in the elevator. Normally, as later described,
the drill pipe may be supported in the roller heads of lat
eral, vertically spaced, upper and intermediate arms 24 10
and 25 of a vertical transfer shaft 26 of the transfer or
Secured to the extendable upper shaft portion or sec
tion 37 are the spaced apart upper and intermediate arms
24 and 25 which carry the roller supporting heads 59 for
the drill pipe. A horizontal bottom arm 60 is secured
to a sleeve 61 surrounding the vertical shaft and rotatably
mounted on bearings 62 supported by the outer shaft por
tion 37 (FIG. 5). Projecting from the bottom bearing
bracket 43 for the vertical transfer shaft is a rigid lever
arm 63 (see FIGS. 3 and 12) and connected between this
handling mechanism, and the roller heads on the outer
portions of the arms 24 and 25 do permit rotation of the
lever arm and the lower arm 60 is an extensible ?uid
pipe and can impart the desired “spring effect" for “jump
jack 64 for swinging the lower arm horizontally on its
ing” the pin out of the box at the moment of a disengage
pivotal mounting on the vertical transfer shaft and ?uid
ment by the tongs. The conventional kelly which cooper
may be trapped in the jack cylinder to lock the lower
ates with the rotary table in the rotation of the drill string
arm in adjusted position. Carried by the bottom arm
is usually attached to the upper end of the drill string and
60 is a spinning device or spinning head, generally desig
passes through the rotary table in such a manner that it
nated 65, for the drill pipe sections of the type disclosed
may be rotated by the table as ‘it ‘moves axially there 20 in my application Serial No. 506,148, ?led May 5, 1955,
through. This kelly may have a conventional swivel at its
and now matured into Patent No. 2,784,626, dated March
upper end and when the drill pipe is supported from this
12, 1957. This spinning device also may be similar to that
swivel it can be rotated at any time, but in handling drill
disclosed in my application Serial No. 335,477, ?led Feb~
collars either a conventional elevator should be coupled
ruary 6, 1953, and now matured into Patent No. 2,746,
on below the automatic elevator, or swivels should be 25 329, dated May 22, ‘1956.
provided in the elevator subs for the drill collars.
Mounted on the derrick ?oor beneath the lower arm 60
The derrick mast, in this improved construction, car
of the spinning device is a make and break tong, generally
ries guide tracks 27 for the traveling block 19, as shown
designated 66, which may be similar to that disclosed in
in FIGS. 1 and 2, for con?ning movement of the block
my application Serial No. 428,979, ?led ‘May 11, 1954,
in a de?nite path, and these tracks include aligned vertical 30 and now matured into Patent No. 2,760,392, dated August
front rail portions 28 and 29 having a front opening there
28, 1956. Mounted at the top of the tong 66 beneath
between. A rear vertical return track portion 30 has an
the spinning device is a transfer clamp, generally desig
inclined bottom track portion 31 and an upper inclined
nated 67.
track portion 32. The track is shown in cross section in
The upper and intermediate arms 24 and 25 of the
FIG. 3 on an enlarged scale, and a continuous slick sheet
transfer shaft carry the roller supporting heads 59 for
33 is located at the back of the return track to prevent
engaging the upper pipe sections for supporting the latter
the elevator from fouling the derrick girts. FIG. 3 also
during the uncoupling of the lower tool joint by the make
shows the fourble board in horizontal section with pipe
and break tong 66 and the spinning device 65, and these
sections or stands stacked within the derrick, as indicated
roller heads permit the upper pipe sections or pipe stand
in dotted lines, and the arcuate path of swing of the trans
to revolve during the spinning operation. These roller
fer arms is indicated in broken lines at 34.
heads are similar in design, and therefore a description
Now referring to the transfer shaft or vertical column
of the intermediate head shown in FIGS. 13 and 14 will
or post 26, it will be noted that extending vertically
su?ice for both. Pivotally mounted on a vertical pivot
within the derrick is a tubular extendable shaft member
pin 68 are lever arms 69 which carry rollers 70 and an
36 having an outer extendable tubular shaft portion or 45 intermediate roller 71 is journaled on the arm in coaxial
section 37 and an inner tubular shaft portion or section
relation with the pivot pin 68. Extensible ?uid jacks
38 telescopically arranged within the outer portion, as
72 comprise cylinders 73 pivotally mounted at 74 on
shown in FIG. 5. The outer shaft portion 37 is rotatably
lateral brackets 75 integral with the arms. Reciprocable
and slidably mounted in bearings 39 supported by hear
in these cylinders are pistons 76 having piston rods 77
ing supports or brackets 40 secured to a vertical plate
pivotally connected at 78 to the lever arms. Thus, when
41 of the derrick mast. The inner telescopic. shaft por
?uid under pressure is properly supplied to the cylinders
tion 38 is rotatably mounted in bearings 42 supported
of the ?uid jacks the pistons are moved outwardly to
within a bearing support or bracket 43 secured to the
swing the lever arms about their pivots to bring the rollers
lower portion of the vertical plate 41. The lower head 44
70 and 71 into guiding contact with the cylindrical pe
of the outer shaft portion 37 has splines 45 engaging
riphery of the drill pipe. The roller head of the inter
splineways 46 on the exterior periphery of the inner shaft
mediate arm has relatively inclined angle-set rollers 79
portion 38 so that the shaft portions of the extendable
respectively mounted on the lever arms 69, as shown in
shaft '36 rotate together. Secured to an intermediate head
FIG. 15, and these rollers ride against the shoulder 13
plate 48 of the outer shaft element is a piston rod 49 to
of the drill collar in the manner shown.
The make and break tonging unit 66, as disclosed in
the lower end of which a piston 50 is secured, and‘ this
piston is reciprocable. within a cylinder bore 51 provided
application Serial No. 428,979, has lower gripping jaw
means 81 for engaging the box end of the underlying pipe
section of the drill string for holding this pipe section
tached to a bottom cap 53 threaded on the lower portion
of the shaft portion 38 and when liquid under pressure 65 against rotation, and also has an upper gripping jaw means
82 for gripping the pin end of the adjacent upper drill
or other pressure ?uid'is supplied from a suitable source
pipe. These upper and lower jaw means have extensible
to the cylinder bore beneath the piston, the latter moves
?uid jacks 83 and 84 for operating the same. Extensible
upwardly extending the outer shaft portion 37 upwardly
?uid jacks 85 are also provided for positioning the upper
along a vertical path within the derrick. A horizontal
gripping means. Upon rocking movement of the upper
lever 54 is keyed to the inner shaft portion 38 and an
jaw means 82, the upper drill pipe section may be turned
extensible ?uid jack 55 having a cylinder 56 containing
in the desired direction either to make or break the joint.
a reciprocable piston 57 (FIG. 16) is pivotally connected
Now referring to the transfer clamp 67 mounted at the
to the lever 54 and the frame 58 (FIG. 3) of the derrick
top of the make and break tonging unit 66, it will be
mast. Thus, by properly supplying ?uid under pressure
to the ?uid jack 55 the extendable telescopic shaft 36 may 75 noted that this clamp is necessitated by the fact that the
by the inner shaft element 38. A liquid conduit 52 is at
make and break tonging unit, or make-up and break-out
mechanism, is released before the spinning device goes
into operation and the upper pipe section of the stand
must be supported prior to the time when the spinning
device, goes into. action. This transfer clamp, as shown
in FIGS. 1'1, 18. and 19, comprises a horizontal frame 86
desirably secured, as by bolts 87, to the top. or” the frame
of the make and break tonging unit 66. Extending trans
versely of the clamp-frame are aligned fluid. cylinders 88
dersv 88 may be controlled to move the Pistons outwardly
to release the gripping jaws 91 from the pipe and; as the
spinning device goes into effect, the rollers of the support,
ing heads carried by the upper and intermediate arms 24
and 25 are brought into operation and during spinning of
the upper pipe stand, ?uid under pressure may besupplied
to the cylinder 39 of the extendable transfer shaft or post
to move the piston so upwardly so. that the spinning de
vice, as it effects rapid rotation, or spinning of the pipe,
containing reciprocable pistons 89, the latter having their 10 moves upwardly with the pipe in unison therewith. When
piston rods 90 secured to. clamping jaws 91 for gripping
the spinning device has completed its spinning function,
the exterior periphery of the drill pipe. Coil Springs s2,
the lever arms thereof may be swung outwardly by the
arranged between the pistons and a ?ange secured to. cen
?uid jacks 112 to release the spinning chain; fromjthe drill
tral guide members ?xed to the cylinder heads, constantly
pipe and at that time the upper‘ pipe stand is; rotatably
urge the gripping jaws toward their released positions. 15 supported by the roller supporting heads‘ on the, upper and
Journaled on bearings 93 supported by a transverse shaft
intermediate transfer arms 24 and 25 and, as'?uidsupply
94 is an accelerating roller QS‘engaging the lower portion
to the elevating cylinder 38 is continued, the transfer shaft
of- the stand of drill pipe intermediate the gripping jaws
is extended axially upwardly to elevate the disconnected
91 (see FIG. 17). This shaft 94 is mounted on a re
stand of drill pipe. When the pipe stand is in elevated
ciprocable ?uid cylinder 96. containing a stationary pis 20 position, as shown in dotted lines in FIG. 4, ?uid tinder
ton 97, the latter having its piston rod 98 secured, at 99‘,
pressure may be supplied to the swing cylinder 56 of the
to the clamp-frame 36. The cylinders 88 have suitable
?uid jack 55 to rotate the transfer shaft to swing, the trans.
?uid conduits 100 connected thereto while the reciprocable
fer arms 24 and 25' laterally from the full line position
cylinder 96- has ?exible ?uid conduits i?l. Thus, when
shown in FIG. 3 to the dotted line position, thereby to
‘fluid under pressure is properly supplied to these cylin~
move the disconnected stand of pipe along its arcuate path
ders, the roller 95 may be brought up against the side of
34 toward its stacked position within‘ the derrick. When
the drill pipe while the gripping jaws 91 are moved in
wardly into gripping engagement wtih the drillv pipe.
When the jaws 91 are released, the roller £°5 may guide
the drill pipe during its axial motion. The gripping jaws
91 must‘engage tool joints of different diameters and
the jaws have gripping teeth so designed to grip either
diameter of joint. Mounted within the clamp-frame above
the gripping jaws are tapered guide blocks 102, desirably
the transfer arms assume the dotted line position shown
in FIG. 3, the levers of the roller supporting heads 5?
may be swung apart to release the drill pipe. Any suit;
able pipe-handling mechanism may be associated with
the transfer shaft to receive the pipe stands upon release
of the roller supporting heads. and, to move them into
stacked position, and‘ since this particular handlingmecha
nism does not per se, enter into the present invention, illus
of reinforced plastic so as not to damage the tool joint 35 tration and description thereof are herein, unnecessary.
shoulder, and these blocks are yieldably held out against
Conversely, the pipe-handling mechanism, andthe transfer
stops 163 on’ the jaws by springs 194. Thus, by. the pro
mechanism together with the roller heads, the spinning
vision of these tapered guide blocks the pin tool joint
will be guided into' the gripping jaws. The guide blocks
device, the transfer clamp and the make and break tong
unit may be operated to move the pipe sections from
102, the jaws 91 and they rim of the roller 95 are ?nished 40 their stacked positions within the derrick into positions
to two radii, and the different radii on the gripping. jaws
for connection to the upper. end'of the drill string.
are respectively designated 1,95‘ and 166. These two
The automatic racking boards are shown diagrammati
radii are formed with gripping teeth or serrations with
cally in FIG. 3, but are not described in detail, sincethey
the serrations on radius 105 made to ?t the smaller diam
may assume various forms because a great, deal ofvv di
eter joint, while those on radius’ 196 are made to ?t the
larger diameter joint (FIG. 29 and 21).,
versity is possible in the design of such an item; Also,
it is quite possible to, pick up the stand of drill; pipe: from
The spinning device 65, as disclosed in application
Serial No. 506,148, comprises a frame 108 (FIG. 12) on
the “drain” position with a cat line or small hoist, and
which lever arms 109 are pivotally mounted and an end 50
less drive chain 110 is guided for circulation along guides
rack in conventional fashion.
The upper vertical track portion 2701? the guide track
for the travelingv block 19, by its guiding engagement
with the block casing, holds the. block against undesired
turning motion during running of the‘ drill pipe into and
carried by- the lever arms and amotor-driven drive member
Extensible ?uid jacks 112 serve to swing the lever
arms about their pivots to bring the“ endess drive chain
out of the hole as the pipe stands are coupled‘ and" tin.
into gripping engagement with the drill pipe and when 5.5 coupled by the tongs,jtransfer1 clamp- and‘ spinning device;
the pipe is ?rmly embraced by the drive chain, the latter
The automatic elevator suspended. from the traveling
may be driven by its motor rapidly to rotate the drill pipe,
block is automatically disconnected: from, and connected
completely to disconnect the "tool joint. The extensible
to, the drill pipe collars as‘ theblock: travelsin its?xed
?uid'jack, ‘64 may be operated to swing the spinning device
orbital path. When the traveling‘ block andtel'evator are
horizontally about the axis of- the upright transfer shaft 60, in lowered position within the lower’ track portion 29
or post between the positions shown in full and dotted
linesin FIG. 3.
The lever arms 109 of- the spinning device for adjust
ing the spinning chain are held'wide apart, as shown. in
dotted lines, in FIG. 3, prior to engagement with the drill
pipe to prevent the chain from fouling the end of the pin
tool joint during engagement, and since a substantial move
ment of these arms is‘ necessary before the spinning chain
is in full engagement with the drill pipe the latter must
at that time be supported by the jaws of‘the transfer clamp.
In other words, after the tool joint is broken by the make
and break tonging unit on and prior to the operation of
the spinning device 55, the upper stand of drill pipe is sup}
ported by the transfer clamp 67 and as the spinning chain
engages the drill, pipe, ?uid ?ow with respect to the cylin
their direction of. travel may be reversed and, as. they
travel upwardly, they-move along the inclined track por
tion 31 to release the. elevator yokefrom the'drill’ pipe;
then move upwardly along the vertical track: 39‘ and ?nally
along the inclined upper track portion 321, Asthe. travel:
ing block again enters the upper ‘vertical’ track portion 27,
the elevator yoke 23 is automatically brought into engage:
mentwith-the upperpipe-seetion beneath the shoulder; 13
of. .the upper.v tool box; 11. Sui-table gatest- or- track
“switches’” 113 andt1__1.4 (FIGS, 1 and.2.): are-provided, for
directing thetraveling block alongtheproper trackway
as the blockis raisedand lowered. From the foregoingit
will be evidentthat theelevator 20. automatically. engages
thedrill pipe andis automaticallyreleased fromthe; pipe
at the‘proper points in the, travel of the block 19. along
its guiding track. Also, the reverse track 30, 31, 32 serves
to hold the traveling block in an out-of-the-way position as
the block moves upwardly. For special operations such
as handling the casing, or the breaking up of the drill
string on the ?nal trip out of the hole, conventional ele~
vators may be suspended below the automatic elevator, if
desired. As previously mentioned, the front rails of the
guide track for the traveling block between the vertical
track portions 28 and 29 are open over a considerable
the engagement of the automatic elevator. The pin
threads of each stand of pipe may be similarly cleaned
and inspected at the “drain” position, more time than
being both required and available because the high speed
of the hoisting mechanism will make all trips very wet,
as will be apparent to those skilled in the art.
The general mode of operation will be clearly appar
ent from the description given. When the drill pipe is
to be raised for uncoupling, the traveling block and
span and this open portion of the track is for the pur 10 elevator are lowered into a position so that the elevator
yoke 23 (*FIG. 8) is brought into engagement with the
pose of allowing the block to Swing out when tying back
upper pipe section beneath the shoulder 13 (FIGS. 8
the kelly, racking the drill collar, or handling the casing.
and 9). The tonging mechanism (make and break tong)
The back rails of the front or working track are continu
66 is positioned to locate the lower gripping jaws below
ous, however, as above described, and this continuous
the tool joint to grip the upper end of one drill pipe and
track serves to prevent undesired rotation of the block
the upper jaws are positioned just above the tool joint for
and elevator during the drilling operation. FIG. 1 shows
gripping the lower end of the adjacent drill pipe. As the
the drill during coming out of the hole, that is during the
respective jaws clamp the separate drill pipes, rotation
“out-trip,” and the directions of movement of the travel
ing block are indicated by arrows.
In FIG. 2, the drill
of one jaw relative to the other jaw will break or loosen
is shown during going into the hole, that is during the 20 the joint as more fully explained in the above mentioned
patent (2,760,392). As stated above, the make and
“in-trip," and here, too, the directions of movement of the
break tong is then released and the transfer clamp 67
traveling block are indicated by arrows.
then operated to support the upper drill pipe section
It should be noted that all of the operations of the vari—
prior to the time when the spinning device goes into
ous pieces of equipment disclosed herein may be manually
controlled with conventional valves and their associated 25 operation. The spinning device 65 mounted on sleeve 61
is swung horizontally about the pivot axis of extensible
control equipment, or when automatic control is desired
shaft 36 until the drill pipe is in a position to be grasped
a high degree of interlocking, fully automatic operation
by the gripping head of the spinning device 65 as more
may be provided. The fact that the traveling block is
fully explained in the above mentioned Patent 2,746,329.
con?ned to a de?nite path of ‘travel by the guide tracks,
The transfer clamp 67 is released as the spinning device
for example, lends itself readily to the use of trips or
goes into operation. The roller supporting heads 24 and
contacts associated with the guide tracks to control the
25 also goes into operation to support the upper drill pipe
operation of the draw works and its braking mechanism;
when the spinning device 65 goes into operation. As the
and conventionel hydraulic interlocks may be provided
rollers of the supporting heads 24 and 25 support the
to control the operation of the tongs, spinning head, trans
fer shaft, etc., in the proper manner. More speci?cally, 35 upper drill pipe during the spinning operation ?uid is
supplied to extendable cylinder 26 to move piston 50
the fluid operated make and break tonging unit 66, the
upwardly so that the spinning device 65 which is mounted
transfer clamp 67, the spinning device 65, the roller sup
on sleeve 61 (FIG. 5) moves upwardly with the pipe in
porting heads, the elevating cylinder for the transfer post,
unison. The spinning device is swung outwardly away
the swing jacks 65 and 64 for adjusting the transfer post
and the spinning device may be controlled to effect their 40 from the drill pipe at the same time the upper drill pipe
is rotatably supported by the roller supporting heads of
various functions in the proper order ‘by conventional
the transfer arms 24 and 25 as the elevating cylinder 38
manually controlled valves located at a conveniently lo
is continued to be moved upwardly to disconnect the
cated control station on the derrick ?oor. If automatic
upper drill pipe from the lower adjacent drill pipe. The
racking of the drill pipe stands is desired, various opera
tions may be effected automatically in a de?nite sequence 45 transfer arms are then swung horizontally on transfer
shaft 26 by ?uid jack 55 (FIG. 16) which is connected
under the control of automatic valves which, under certain
to lever 54 which is keyed to inner shaft portion 38 (FIGS.
conditions, may be actuated by trip devices, contact
16 and 5). When the transfer arms 24 and 25 assume
switches or otherwise associated with the guide track of
the dotted line position shown in FIG. 3, the levers of
the traveling block in the path of travel of the latter, so
that the various functions may be effected automatically 50 the roller supporting heads 59 may be swung apart to
release the upper drill pipe. From here any suitable
at the proper times. Thus, as the traveling block is low
pipe handling mechanism may be used to receive and
ered along its track the pipe stands may be moved from
store the drill pipes.
their stacked position within the derrick into alignment
As a result of this invention, an improved transfer or
with the drill string and the pipe joints may be automati
handling mechanism is provided for an oil well drill rig
cally coupled by proper operation of the roller support
ing heads, the spinning device, the transfer clamp, the
whereby the coupling and uncoupling of the pipe stands
and the transferring and handling of the pipe stands are
mechanized in such manner as greatly to increase the
traveling block moves upwardly along its guide track dur
speed with which oil wells may be drilled. The improved
ing coming out of the hole, the various devices may be
transfer mechanism may be associated with conventional
operated in reverse order automatically to uncouple, ele~
drill rigs with a minimum of change, so that drill n'gs
vate, transfer and stack the pipe stands. The ?uid ele
now in the ?eld may be readily mechanized to a large
vating cylinder 38 for the extendable transfer shaft is,
tonging unit and the transfer shaft.
Conversely, as the
of course, operated at the proper time and at the proper
degree. By the provision of the improved extendable
transfer shaft or post the drill stands may be supported,
speed, so that the spinning device and roller supporting
heads may travel in unison with the pipe stand during 65 elevated and transferred in an extremely effective manner,
not only increasing the degree of mechanization but also
their operation.
improving the control of certain operations and reducing
Although no particular mechanism is disclosed herein,
the number of men required in the drilling crew. By
it is proposed to blow the box threads out with properly
extending the transfer shaft or post axially in a vertical
spaced jets of air, water and air (with a suitable spray 70 direction'as the spinning operation is effected, the joints
collecting system), enabling a ?ash inspection of the
of the pipe stands after breaking may be rapidly rotated
threads to be made by means of enlarging mirrors and
to effect disconnection as they are elevated or may be
properly located lights, and the thread lubricant may be
rapidly rotated to effect connection as they are lowered,
applied to the joint threads in the small interval of time
without interruptions. The improved transfer and pipe
between the completion of the break-out operation and 75 handling mechanism and the other associated devices are
relatively simple and rugged in design, well adapted for
9.. A ‘combination as set forth in claim 8'wherein means
their intended purposes. These and other advantages
will be clearly apparent to those skilled in the art.
While there is in this application speci?cally described
one form which the invention may assume in practice,
it will be understood that this form of the same is shown
for purposes of illustration and that the invention may
is provided on said column to swingv said pipe support
ing. and rotating means horizontally about the vertical axis
of said column thereby to swing the elevated pipe stand
horizontally therewith.
be modi?ed and embodied in various other forms without
What I claim as new and desire to secure by Letters
Patent is:
1. In a pipe-handling mechanism for drill rigs, a ver
tical post, supporting means on said post for freely rotat
ably supporting a pipe-stand in suspension therefrom,
rotating means on said post for rotating the pipe-stand,
' ’
roller supporting head carried by said extendable portion
departing from its spirit or the scope of the appended
10. ‘In a transfer mechanism. for drill rigs, an upright
transfer shaft having a vertically extendable portion, a
and having rollers for freely rotatably supporting a stand
of drill pipe, the drill pipe having» a» downwardly facing
roller engaging surface whereby the pipe stand is sus
pended from said supporting head, a turning device car
ried by said extendable shaft portion for turning the pipe
stand on said roller supporting head as it moves vertically
with said extendable shaft portion, and means for ex
tending said shaft portion to move the pipe stand verti
and means for elevating said supporting and rotating
cally concurrently with rotation thereof by said turning
means vertically in a direction extending lengthwise of
said post to elevate the pipe stand as rotation of the
11. A roller supporting head for drill pipe compris
latter is effected by said pipe-rotating means.
20 ing a horizontal frame, a pipe-engaging roller journaled
2. A pipe-handling mechanism as set forth in claim 1
on said frame to turn about a vertical axis, cooperating
wherein means is provided for swivelly mounting said
lever arms pivotally mounted on said frame and carrying
supporting and rotating means on said post for turning
pipe engaging rollers respectively, said rollers having
movement horizontally about the vertical axis of said
smooth non-gripping cylindrical peripheries, and means
25 for swinging said lever arms to bring said rollers into pe
3. A pipe-handling mechanism as set forth in claim 1
ripheral guiding contact with the drill pipe, the drill pipe
wherein said post comprises cooperating inner and outer
tubular parts having relative telescopic axial movement
and said supporting and rotating means are carried by
the axially movable outer part of said post.
having an annular downwardly facing shoulder with
which said second mentioned rollers have supporting en
gagement whereby the drill pipe is freely rotatively sus
pended from the supporting head.
4. In combination, a make and break mechanism for
12. A roller supporting head as set forth in claim 11
a drill pipe line having a series of pipe sections coupled
wherein said second mentioned rollers have their smooth
together, a spinning device for rapidly rotating a stand
peripheries each lying in the surface of a cone and are
of drill pipe, and a transfer clamp for supporting the
mounted on said arms respectively to turn about rela
stand of drill pipe prior to the time said spinning device 35 tively inclined axes for engaging the annular shoulder
goes into operation and releasable from the pipe stand
which is formed on the box end of the drill pipe.
when said spinning device is operated to rotate the pipe
13. In ‘combination, a hoisting mechanism for a drill
pipe line comprising a series of pipe sections coupled to
5. A combination as set forth in claim 4 wherein a
gether, said hoisting mechanism having means attachable
hoisting mechanism is provided for the drill pipe line and
to a pipe section for supporting the pipe line and adapted
elevating means is provided for said spinning device for
to raise and lower the pipe line, a make and break de
elevating the same in unison with the pipe stand during
vice for connecting and breaking the joints of the pipe
the spinning operation.
line for attaching a pipe stand to or detaching the same
6. In combination, a hoisting mechanism for a drill
from the pipe line, a spinning device for completely con
pipe line having a series of pipe sections coupled to 45 necting or releasing the joints of a stand of drill pipe
gether, a make and break tonging device for connecting
when the pipe stand is released from the pipe line by said
or disconnecting a coupling between pipe sections, verti
make and break device, said hoisting mechanism oper
cally spaced apart roller heads having rollers for freely
able to raise and lower the pipe stand with respect to said
rotatably supporting a stand of drill pipe, and an elevat
make and break device and said spinning device while
ing device for moving said roller heads vertically in uni~ 50 said devices are released from the pipe stand, and ele—
son to cause elevation of the stand of drill pipe when the
vating means for said spinning device for moving the
pipe stand is uncoupled from. the pipe line, said elevat
same with the detached stand or drill pipe and the pipe
ing device permitting free rotation of the pipe stand on
stand is raised or lowered and spinning of the pipe stand
said head-rollers during elevation of said device.
is effected, said elevating means being separate from said
7. In combination, a drill pipe line comprising sec 55 hoisting mechanism but cooperating with the latter in
tions of drill pipe coupled together, make and break tong
the handling of the pipe line and the pipe stand.
ing mechanism for the pipe line for making and breaking
14. In combination, a drill pipe line adapted to move
the pipe couplings, means for rotatably supporting a
axially into and out of a hole, a supporting head having
stand of drill pipe prior to coupling of the same to or
rollers for freely rotatably supporting a stand of drill pipe
after uncoupling the same from the pipe line, means for 60 detached from the pipe line, said pipe stand extending
raising and lowering the pipe stand, and spinning mecha
nism movable up and down in unison with the pipe stand
for spinning the latter on said rotatably supporting means
axially through said head and having a downwardly fac
ing roller engaging shoulder spaced axially from its ends
whereby the pipe stand is suspended at an intermediate
point along its length from said head, and elevating means
65 for said head for moving the pipe stand supporting
thereby upwardly with respect to the pipe line and for
8. In combination, in a pipe transfer mechanism, an
lowering the pipe stand toward the pipe line.
extendible column, means for freely rotatably supporting
to connect or disconnect the stand to or from the pipe
a pipe stand on said column in vertical parallelism there—
with, means for extending said column in a vertical di
rection to elevate said rotatably supporting means to
effect elevation of the pipe stand therewith, and means
on said column for rotating said pipe stand as the latter
is elevated in unison with said rotatably supporting
15. In combination, a drill pipe line movable into and
out of a hole, means for freely rotatably supporting a
stand of drill pipe detached from the pipe line, the pipe
stand extending upwardly through said supporting means
and having a downwardly facing shoulder intermediate
its ends whereby the pipe stand is suspended at an inter
mediate point along its length from said supporting
75 means, elevating means for raising and lowering the de
tached drill pipe stand with respect to the pipe line, and
pipe rotating means movable with said elevating means
and the pipe stand for rapidly rotating the latter during
elevation thereby said elevating means.
16. A combination as set forth in claim 14 wherein
means is carried by said elevating means and engaging the
pipe stand at a point spaced axially thereof with respect
to said roller-head for rotating the pipe stand as the lat
ter is raised or lowered.
References Cited in the ?le of this patent
Sheldon ____________ __ Nov. 18,
Sherwood ____________ __ Oct. 18,
Calhoun _____________ __ Mar. 4,
Calhoun _____________ __ Oct. 12,
Lee ____________ __'.__.__._ Apr. 3, 1951
Stone _______________ __ Sept. 4, 1951
Storm _______________ __ Mar. 21, 1953
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